Finding the Fourth Proportional to 123,814.42, 170,864.53 and 70,109.89

Step by Step Solution

1. Step 1: Write the proportion equation
   123,814.42 : 170,864.53 = 70,109.89 : x
2. Step 2: Convert to fraction form
   123,814.42/170,864.53 = 70,109.89/x
3. Step 3: Cross multiply
   123,814.42x = 170,864.53 × 70,109.89
4. Step 4: Simplify right side
   123,814.42x = 11,979,292,800.77
5. Step 5: Solve for x
   x = 11,979,292,800.77/123,814.42
6. Step 6: Final answer
   x = 96,752.00